- Видео 114
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ilan levine
Добавлен 28 авг 2008
the shark tickler a device for bycatch reduction 1080p
Outlines the research done by our collaboration to reduce shark bycatch by longline fishing - the main extinction pressure on multiple species of sharks.
Просмотров: 46
Видео
Flight 2 of IUSB instrumented balloon, part 5 pop and land
Просмотров 1542 месяца назад
You can see the burst of the balloon at 11:52 and the fairly chaotic descent. All instruments recorded data until impact.
Flight 2 of IUSB instrumented balloon, part 3
Просмотров 572 месяца назад
Flight 2 of IUSB instrumented balloon, part 3
Flight 2 of IUSB instrumented balloon. part 1
Просмотров 922 месяца назад
Fill and launch of the balloon.
Middle flight
Просмотров 193 месяца назад
Second GoPro movie from first flight. Initial IUSB instrumented balloon launch 12July2024. Several IUSB student dataloggers are seen protected by pipe insulation. Dangling below the middle of the frame is a cosmic ray detector modified by the University of Notre Dame QuarkNet cosmic ray group.
Fill ascent 2july2024
Просмотров 263 месяца назад
Filling and beginning of ascent of initial IUSB instrumented balloon launch 12July2024. Several IUSB student dataloggers are seen protected by pipe insulation. Dangling below the middle of the frame is a cosmic ray detector modified by the University of Notre Dame QuarkNet cosmic ray group.
Drone launch
Просмотров 23 месяца назад
Here is a Drone's eye view of our first instrumented balloon launch. Drone flown and recorded by Calvin Swartzendruber from Bethany Christian School, via the U. Notre Dame QuarkNet group. Cal works in the cosmic ray group at QuarkNet.
liftoff! First IU South Bend Instrumented Balloon Flight
Просмотров 1353 месяца назад
The launch of the first balloon in what will be a continuing set of launches to teach students how to make instruments, take data with them and then analyze the data
Fill and tie balloon post
Просмотров 93 месяца назад
Last part of fill and prep of balloon prior to launch!
Rework of self-unscrew restrainer.
Просмотров 279 месяцев назад
When the shark ticklers were deployed on deep pelagic line fishing lines, external pressure compressed the unit to such an extent that the tightening collar was loosened. When sharks or fish struggled after being caught, this led to ~10% of the ticklers being lost for each set. Our solution for this generation of ticklers was to drill holes in the collar and an external fitting and tightly conn...
Modification of Shark Tickler design 2.0
Просмотров 129 месяцев назад
This modification will prevent the problem first observed in our discovery paper that under high pressure, the collar compressing the O-ring loosens from the high external pressure compressing the O-ring further. Then, when a fish or shark is caught and struggling, the collar can become spun all the way off. This simple kludge prevents unscrewing. Demonstration of the simple modification by my ...
Tori's Shark Tickler Poster
Просмотров 47Год назад
Tori Hartl, of IUSB's department of biology describes the work that she has done with my group and with emeritus professor Peter Bushnell ( all of our colleagues at other institutions) in developing a device which might stop the precipitous decline of shark populations.
Test of IU South Bend 'shark tickler on 'Spiny Dogfish.
Просмотров 213Год назад
Test of IU South Bend 'shark tickler on 'Spiny Dogfish.
Galapagos shark tickler first control + active trial
Просмотров 251Год назад
Galapagos shark tickler first control active trial
Minji practicing for Notre Dame Science fair, 2020
Просмотров 294 года назад
Minji practicing for Notre Dame Science fair, 2020
Nathan observestemp change from compression
Просмотров 124 года назад
Nathan observestemp change from compression
High School student using lathe to fabricate sound sensor bodies.
Просмотров 314 года назад
High School student using lathe to fabricate sound sensor bodies.
Rodney Marsalis solo at IUSB Jazzfest 2019
Просмотров 185 лет назад
Rodney Marsalis solo at IUSB Jazzfest 2019
Rodney Marsalis Philadelphia Big Brass Band at IUSB Jazzfesst 2019.
Просмотров 385 лет назад
Rodney Marsalis Philadelphia Big Brass Band at IUSB Jazzfesst 2019.
IU South Bend Jazz Ensemble again Jazzfest-2019
Просмотров 295 лет назад
IU South Bend Jazz Ensemble again Jazzfest-2019
IUSB JAZZ ENSEMBLE AT IUSB JAZZ-FEST 2019
Просмотров 325 лет назад
IUSB JAZZ ENSEMBLE AT IUSB JAZZ-FEST 2019
It's also demonstrated that there are no straight lines for cables or supports... 🧐
I don't understand your comment. If you mean that there should be more stuff rigidly holding cables etc in place, we are limited by FAA rules to <4lb weight. Also, no problems to any detectors during the flight;..Even on impact, only 1 rigid spar was broken, with no data loss....but maybe I am misunderstanding you?
@@iylevine What I mean is that you are probably using a camera with a "fisheye" type lens that distorts the image. I don't think the cables and brackets that also have a curvature in the video are curved instead of straight. I don't know if my comment is a little clearer now. Greetings.
@@ToniBorras Not only clearer, but good eye on your part. Once one is above 50,000 ft (we got up to 86,000 ft) the curvature is said to be visible, but I don't know how much of the apparent curvature in this video is actually seeing that, versus optical/psychological effects. Cheers, Ilan
It would be nice if we had some basic telemetry info. Also, the balloon bursts around 03:19, not at 11:52.
Sorry, 11:52 was real clock time as recorded on GoPro. 3:11 is the amount of time in minutes and seconds after the start of the fifth potion of video (GoPro breaks up video into 4Gb chunks) Thanks for your input! We do have telemetry from the Eagle flight computer, but I did not have that dowloaded when I posted the videos. What specifically do you want?
The band leader was my high school band director! This is great. I’d like to see more.
It is so nice to see Monika again. I met her at Cornell when I was a graduate student, in the early 90's. A very nice and intelligent lady.
Einstein's gravity calculation is correct and MOND is disproved from the Bullet Cluster. The truth is in the middle. My hypothesis that Dark Matter is not a WIMP, but maybe is a deformation of space-time by which the curvature of space-time ALONE is the cause of the gravitational effect. Gravity is the consequence of the curvature of space-time. It may be possible that the structure of space-time itself could be warped without the presence of mass. Space-time has been shown to react like a fabric by warping, twisting, and propagating independent of mass. These properties have been proven with observations of gravitational lensing, frame dragging, and now gravitational waves. Fabrics can be stretched, pressured, and/or heated to the point of deformation. Such extreme conditions were all present during inflation, so it is plausible that space-time’s elastic nature could have hit its yield point and permanently deformed. Therefore, if gravity is the consequence of the warping of space-time, and fabrics can be permanently deformed, then a deformation could create a gravitational effect independent of mass. DM could be a microscopic black holes with no mass at the center, so they wouldn't lose their strength via Hawking Radiation. Prediction: Spacetime's elastic property hits a yield point, so only that part of geodesic's "stretch marks" would remain after inflation stopped. These steep gravitational wells would not follow the inverse square law. They would be steep tiny gravity wells.
great voice